There have since also been arrested, said a spokesman for the Prosecutor's office in Offenbach, Germany on Thursday. The investigators praised a reward of 2000 euros for information leading to the identification of perpetrators. The incredible outbreak of violence in a high-rise district, in the district of Offenbach rioters fire and attracted the police and the fire brigade in an ambush. The forces were attacked with stones laid only by luck no one was hurt. Is determined for trespassing and attempted dangerous bodily injury.